Are the indicators coming on on the right when selected on the stork, if not its the contacts dirty/corroded on the stork switch. Ignition off give it a wiggle on and of a few times then switch on and repeat. Fairly sure on your car there is a fuse for left and right indicators and the hazards are independent of them. Could of course be a contact to indicator light light as well. You've just reached the age where a car with no roof or real waterproofing to the connectors will start to have contact issues from damp conditions. Oh! Behind the dash is not frightening either and is easy to open up!
